Scaffold support



Sept. 27, 1955 D. E. BEATTY SCAFFOLD SUPPORT Filed July 1. 195o mwen/ron @4r/oi @Enrry BY MM., #Ma-,

Arran/ver nited States Patent() scAFFoLD SUPPORT David E. Beatty, Hiusbemugh, Calif. Application July 1, 1950, Serial No. 171,650

3 claims. (c1. 304-37) This invention relates to a scaffold support. More particularly, it relates to a scaffold support which is adapted to provide a finn support member for tubular scaffolding.

It is an object of the present invention to provide scaffold support means of the character and for the purpose described, which is simple in its construction and operation.

It is a further object of the invention to provide scaffold support means of the character described which is adapted to provide a bottom-most support or base member for tubular scaffolding, and which is easily coupled and uncoupled.

It is a still further object of the invention to provide scaffold support means of the character and for the purpose described which is easily attached to the bottommost, upright tubular members of a scaffold structure and which is easily clamped to the ground, flooring or other surface on which the scaffolding rests.

These and other objects of the invention will be apparent from the ensuing description and the appended claims.

The invention is exemplified in the accompanying description and illustrated by way of example in the accompanying drawings, in which:

Figure 1 is a fragmentary, elevational view of an upright tubular scaffolding member fitted with the bottom support means of the present invention.

Figure 2 is a view similar to that of Figure 1, but shown partly in vertical section.

Figure 3 is a view partly in section and partly in elevation showing both components of my support means and the manner in which they are coupled.

Figure 4 is a plan view of the base member shown in Figure 3, as viewed along the line 4-4 of Figure 3.

Feferring now to the drawings, an upright scaffold member is shown which is of tubular construction and is preferably formed of seamless tubing, such as an aluminum alloy tubing. The tubular member 10 is preferably formed with longitudinal grooves 11 defining ribs 12. A female or tubular coupling member 13 is provided which is received within the lower end 10a of the tubular scaffolding member 10. The tubular coupling member 13 is preferably cast or forged from a suitable aluminum alloy and it is formed with an upper shank portion 14 and a bottom portion 15 of greater diameter than the shank portion, thus defining an annular shoulder 16 to be lodged firmly against the lower end 10a of the tubular member 10. The tubular coupling member 13 is received within the lower end of the tubular scaffolding member 10, as illustrated, and it is firmly secured therein, as by punching the tubular member 10 at 17 and the shank 14 at 18.

The bottom portion 15 of the tubular coupling member 13 is formed with two diametrically opposite bosses or lugs which serve to form diametrically opposite vertical slots 26 and a horizontal slot or groove 27. In effect, therefore, the tubular member 13 is formed with a pair of diametrically opposed bayonet slots.

CII

2,719,06 1 Patented Sept. 27, 1955 ICC The tubular coupling member 13 is intended to cooperate with a base member or male coupling 30. The base member 30 is also preferably cast or forged from a suitable aluminum alloy and it is formed with a fiat, disc-like base 31 having notches 32 formed at intervals about its perimeter, and with a circular boss 33. The base member 30, as is best shown inFigure 3, is also formed with an upstanding spindle or shank 34 and with diametri cally opposite and radially directed pin 35. As shown in Figure 3, in coupling the tubular member 10 with the base member 30, the latter is laid upon the ground or flooring upon which the scaffolding is to rest, in registry with the ltubular scaffold member 10 which it is intended to support. The base member 30 will be adjusted to align its pins 35 with the vertical slots 26. The base member 30 will then be raised or the tubular scaffold member 10 will be lowered, depending upon the circumstances, until the members 13 and 30 are brought into telescopic, operative relationship, with the lower edge of the member 13 resting upon the boss 33. The base 31 will then be twisted in either direction to seat the radial pins 35 in the horizontal slot 27, thereby securely locking the base member 30 in the tubular member 13. Thereafter, nails, pegs or screws indicated at 40 will be lodged in the notches 32 and driven into the ground or flooring indicated at 41 in Figure l. The base member 30 will thus be firmly clamped to the ground or flooring to prevent twisting thereof.

It will thus be apparent that support means has been provided for tubular scaffolding which is simple in its construction and operation. The structure provided is adapted to use with standard tubular scaffolding and the mode of attachment of the female member of my support means is simple and effective, requiring only a punching operation. Both members of my supporting structure may be case or forged, and the molds, patterns or dies and the forming operations are free from complications. Coupling the two members 13 and 30 is a simple operation, and when properly coupled and clamped to the ground or a floor, they provide a secure footing or base support.

While I have illustrated and described my invention in detail, it is to be understood that various changes may be made therein by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

I claim:

l. A readily attached and detached locking scaffold support, comprising a tubular coupling member one end of which is adapted to fit within the end of a tubular scaffolding member and the other end of which is an abutment for and an extension of such scaffolding member with the same diameter, said tubular coupling member being formed with an internal bayonet slot, and a uniformly formed and integral co-operable support member comprising a base portion in the form of a flat disc of substantially greater diameter than said tubular member, an upright spindle fixed to said base and a pin extending radially outwardly from said spindle for sliding reception in said slot, said base being formed with notches on its periphery for reception of nails or the like to clamp the base to a flooring or the like.

2. A structure of the character described, comprising readily attachable and detachable male and female coupling members, said female coupling member being of tubular construction, having an upper portion of lesser diameter adapted to fit internally of a tubular structural member and a lower portion of greater and substantially equal diameter to said tubular member defining an external annular shoulder for abutment of such tubular member, said lower portion being formed with internal diamertically opposite bayonet slots, said male coupling member being uniformly formed and integral comprising a flat, disc-like base having a diameter greatly in excess of said tubular member, an upstanding shank portion and a pair of diametrically opposite pins extending radially outwardly from said shank portion and adapted to be slidably received within said bayonet slots.

3. A readily attached and detached locking scaffold support, comprising male and female coupling members, said female coupling member being of tubular construction, having an upper portion of lesser diameter and a lower portion of greater diameter dening an external annular shoulder, said upper portion adapted to t internally of the end of a tubular structural member and said lower portion being formed with an external shoulder of the same diameter as and for abutment with the end of such tubular member, and internally with diametrically opposite bayonet slots, said male coupling member comprising a uniformly formed integral at, disc-like base having a diameter substantially in excess of said tubular member, an upstanding shank and a pair of diamertically opposite pins extending radially outwardly from said shank and adapted to be slidably received within said bayonet slots, said base being formed with notches for reception of nails, or the like for clamping the same to a flooring or the like.

References Cited in the file of this patent UNITED STATES PATENTS 362,915 Zeigler May 10, 1887 483,841 Goodnow Oct. 4, 1892 901,561 Searing Oct. 20, 1908 1,232,193 Bowes July 3, 191.7 1,465,008 Stephens Aug. 14, 1923 2,203,114 Uecker June 4, 1940 2,294,240 Pollman Aug. 25, 1942 2,429,190 McArthur Oct. 14, 1947 FOREIGN PATENTS 79,684 Norway Feb. 27, 1934 

